Imaging processing method for smart mirror, and smart mirror

Patent metadata

Field	Value
Publication number	US-10839209-B2
Application number	US-201916238229-A
Country	US
Kind code	B2
Filing date	Jan 2, 2019
Priority date	Jan 16, 2018
Publication date	Nov 17, 2020
Grant date	Nov 17, 2020

Abstract

An imaging processing method for a smart mirror includes obtaining biometric parameters of a user; determining whether to perform a processing on an image of the user in the smart mirror according to the biometric parameters, wherein the processing comprises an enlargement processing or a reduction processing; and performing the processing on the image of the user in the smart mirror upon the determining is positive.

First claim

The invention claimed is:

1. An imaging processing method for a smart mirror, comprising:
obtaining biometric physical parameters of a user with at least one of an image acquisition component, a distance detecting component, an infrared distance measuring device, and an ultrasonic device;
determining whether to perform a processing on an image of the user obtained by and displayed in the smart mirror according to the biometric physical parameters, wherein the processing comprises an enlargement processing or a reduction processing;
performing the processing on the image of the user in the smart mirror upon the determining is positive; and
upon that the processing on the image of the user in the smart mirror is determined again according to the biometric physical parameters of the user, and the determined processing is opposite to a preceding processing on the image of the user, setting a scaling ratio of the determined processing to be less than that of the preceding processing when performing the processing on the image of the user in the smart mirror for the present time.

2. The method according to claim 1 , wherein:
the biometric physical parameters comprise a moving state of the user in a direction of a mirror surface of the smart mirror; and
the method further comprises:
determining to perform the enlargement processing on the image of the user in the smart mirror upon detecting a movement of the user towards the smart mirror in the direction of the mirror surface of the smart mirror; and
determining to perform the reduction processing on the image of the user in the smart mirror upon detecting a movement of the user away from the smart mirror in the direction of the mirror surface of the smart mirror.

3. The method according to claim 1 , wherein:
the biometric physical parameters comprise a state of a pupil; and
the method further comprises:
determining to perform the enlargement processing on the image of the user in the smart mirror upon detecting that a pupil image is contained in an image captured by the image acquisition component and that a pupil size in the pupil image is enlarged.

4. The method according to claim 1 , wherein in a case that the processing is the enlargement processing, the performing the processing on the image of the user in the smart mirror comprises at least one of:
controlling the smart mirror to toward the user; and
enlarging the image of the user and displaying the enlarged image in the mirror surface of the smart mirror.

5. The method according to claim 4 , wherein the controlling the smart mirror to move in the direction of the mirror surface comprises:
obtaining a preset displacement distance, and controlling the smart mirror to move in the direction of the mirror surface by the preset displacement distance; or
detecting, with the distance detecting component, a distance between the user and the smart mirror in the direction of the mirror surface of the smart mirror; calculating a difference between the distance and a preset target distance, and controlling the smart mirror to move in the direction of the mirror surface by the difference.

6. The method according to claim 4 , wherein the obtaining an enlarged image of the user in the direction of the mirror surface of the smart mirror comprises:
obtaining a preset target enlargement coefficient of image; obtaining an enlarged image of the user in the direction of the mirror surface of the smart mirror, based on the target enlargement coefficient of image; or
detecting, with the distance detecting component, a distance between the user and the smart mirror in the direction of the mirror surface of the smart mirror; calculating a difference between the distance and a preset target distance, and determining a target enlargement coefficient of image corresponding to the currently calculated difference according to a pre-stored correspondence between the difference and the enlargement coefficient of image; and obtaining an enlarged image of the user in the direction of the mirror surface of the smart mirror, based on the target enlargement coefficient of image.

7. The method according to claim 6 , wherein the obtaining an enlarged image of the user in the direction of the mirror surface of the smart mirror based on the target enlargement coefficient of image comprises:
detecting a position of a face image in the image acquired by the image acquisition component; and
enlarging the image based on the target enlargement coefficient of image by centering the image of the user on the position of the face image to obtain an enlarged image of the user in the direction of the mirror surface of the smart mirror.

8. The method according to claim 6 , wherein the obtaining an enlarged image of the user in the direction of the mirror surface of the smart mirror based on the target enlargement coefficient of image comprises:
adjusting a focal length of the image acquisition component based on the target enlargement coefficient of image; and
obtaining, by acquiring the image through the adjusted image acquisition component, an enlarged image of the user in the direction of the mirror surface of the smart mirror.

9. The method according to claim 1 , wherein in a case that the processing is the reduction processing, the performing the processing on the image of the user in the smart mirror comprises:
controlling the smart mirror to move away from the user; or
obtaining a reduced image of the user in the direction of the mirror surface of the smart mirror, and displaying the reduced image in the mirror surface of the smart mirror.

10. The method according to claim 1 , wherein the biometric physical parameters comprise a size of user eyes, and the method further comprises:
determining to perform the enlargement processing on the image of the user in the smart mirror upon detecting that the user is squinting eyes trying to see the image in the smart mirror clearly.

11. A smart mirror, comprising a processor and memory, wherein the memory has stored therein at least one instruction, at least one piece of program, a code set, or an instruction set that are loaded and executed by the processor to implement an imaging processing method for the smart mirror, wherein the method comprises:
obtaining biometric physical parameters of a user with at least one of an image acquisition component, a distance detecting component, an infrared distance measuring device, and an ultrasonic device;
determining whether to perform a processing on an image of the user obtained by and displayed in the smart mirror according to the biometric physical parameters, wherein the processing comprises an enlargement processing or a reduction processing;
performing the processing on the image of the user in the smart mirror upon the determining is positive; and
upon that the processing on the image of the user in the smart mirror is determined again according to the biometric physical parameters of the user, and the determined processing is opposite to a preceding processing on the image of the user, setting a scaling ratio of the determined processing to be less than that of the preceding processing when performing the processing on the image of the user in the smart mirror for the present time.

12. The smart mirror according to claim 11 , wherein:
the biometric physical parameters comprise a moving state of the user in a direction of a mirror surface of the smart mirror; and
the method further comprises:
determining to perform the enlargement processing on the image of the user in the smart mirror upon detecting a movement of the user towards the smart mirror in the direction of the mirror surface of the s

Assignees

• Beijing Xiaomi Mobile Software Co Ltd

Inventors

• Wang Han
• Han Jin
• Chen Tao

Classifications

• G06V40/19

  Sensors therefor · CPC title

• G06V10/10 Primary

  Image acquisition (document image scanning and transmission H04N1/00; control of digital cameras H04N23/60) · CPC title

• G06V40/171

  Local features and components; Facial parts (eye characteristics G06V40/18); Occluding parts, e.g. glasses; Geometrical relationships · CPC title

• G02B5/08

  Mirrors {(vehicle mirrors involving special optical features B60R1/08)} · CPC title

• G06T1/0007

  Image acquisition · CPC title